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1fr;align-items:center}}:root{--bg:#0a1120;--bg-alt:#0d1526;--surface:#131d31;--surface-raised:#1a2540;--surface-sunken:#0c1424;--border:#223050;--border-strong:#32436c;--text:#e8eefb;--text-dim:#a7b6d4;--text-muted:#7387ad;--accent:#5b93fb;--accent-hover:#74a5ff;--accent-soft:rgba(91,147,251,.14);--accent-contrast:#06122a;--unread:#f2a33c;--unread-soft:rgba(242,163,60,.15);--unread-text:#f7bf74;--danger:#f4636a;--danger-soft:rgba(244,99,106,.14);--success:#43cf95;--success-soft:rgba(67,207,149,.14);--code-bg:#070d1a;--code-text:#cbd9f4;--shadow-sm:0 1px 2px rgba(2,6,16,.5);--shadow-md:0 6px 20px -6px rgba(2,6,16,.7);--shadow-lg:0 24px 60px -12px rgba(2,6,16,.85);--font-ui:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--font-mono:ui-monospace,"SF Mono",SFMono-Regular,"JetBrains Mono",Menlo,Consolas,monospace;--radius-sm:6px;--radius:10px;--radius-lg:16px;--rail-width:3px;--page-gutter:clamp(16px,3vw,40px);--transition:120ms cubic-bezier(0.4,0,0.2,1);--fs-display:clamp(2.6rem,6vw,4.75rem);--fs-h1:clamp(2rem,4vw,3rem);--fs-h2:clamp(1.5rem,2.6vw,2rem);--fs-lead:clamp(1.05rem,1.5vw,1.3rem);color-scheme:dark}:root[data-theme=light]{--bg:#f4f6fb;--bg-alt:#eef1f8;--surface:#fff;--surface-raised:#fff;--surface-sunken:#f7f9fd;--border:#dde3ef;--border-strong:#c3cddf;--text:#101a2e;--text-dim:#46566f;--text-muted:#6b7c99;--accent:#2563eb;--accent-hover:#1d4ed8;--accent-soft:rgba(37,99,235,.1);--accent-contrast:#fff;--unread:#c2740b;--unread-soft:rgba(194,116,11,.12);--unread-text:#96590a;--danger:#d92d33;--danger-soft:rgba(217,45,51,.09);--success:#14855c;--success-soft:rgba(20,133,92,.1);--code-bg:#0d1526;--code-text:#d7e2f7;--shadow-sm:0 1px 2px rgba(16,26,46,.06);--shadow-md:0 6px 20px -6px rgba(16,26,46,.14);--shadow-lg:0 24px 60px -12px rgba(16,26,46,.22);color-scheme:light}@media 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